Rand Paul heads home after 13-hour filibuster

Sen. Rand Paul, R-Ky., walks to a waiting vehicle as he leaves the Capitol after his filibuster of the nomination of John Brennan to be CIA director on Capitol Hill in Washington, early Thursday, March 7, 2013.

Charles Dharapak / AP

Rand Paul speaks to reporters after leaving the floor of the Senate.

It started as a one-senator crusade shortly before lunch on Wednesday, but as the day went on, more senators joined Rand Paul of Kentucky to take a stand against drones being used to target Americans on U.S. soil. NBC's Chuck Todd reports.

"I've discovered that there are some limits to filibustering, and I am going to have to take care of one of those in a few minutes here," he said to laughter after thanking his supporters and staff. Read the full story.